Question: What does each part of the constructed lung model represent?
In a constructed lung model, various everyday materials are used to represent different parts of the human respiratory system. The plastic bottle typically symbolizes the chest cavity, providing a protective environment for the lungs. The plastic tubing is analogous to the trachea, the tube that extends from the larynx down into the chest cavity. The Y-shaped connector represents the bronchi, which are the two smaller tubes that the trachea splits into. Balloons inside the bottle mimic the lungs themselves, expanding and contracting as air flows in and out. Lastly, the balloon covering the bottom of the bottle acts as the diaphragm, demonstrating how its movement creates changes in lung volume and facilitates breathing. This model serves as a hands-on educational tool to help students and educators visualize and understand the breathing process and the function of the respiratory system.
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